Add an indicator next to folders on left (e.g. keywords, duplicates etc) which shows percentage of papers resolved in that folder. This may also be achieved with a colour coded strip indicating red for incomplete and green for complete. This would then enable a reviewer to move on to other folders without going back and forth into folders already resolved.

Add the ability to filter by year to your mobile app.

Be able to reject in two waves, so title screening and abstract screening can be done separately

Currently if I am in the "unresolved duplicates" category and delete duplicates, they get added to the "deleted" folder but they stay under the "unresolved" category unless I refresh it. Similarly, when I am in the "undecided" category and I include or exclude an article, it stays in the undecided category until I go into the category again. It would be good if these were automatically moved out of these lists after applying these actions, as it gets confusing & is annoying to have to manually refresh every single time.

be able to filter based on whether it was judged by only one individual or both.

Announcements when Rayyan is down or not functioning properly

Like the Tinder dating app. Each study would then be loaded individually on screen and upon swiping, the next article would present itself. Swiping up or down could mean previous or next, respectively without making a decision.

Allow multiple tags to be selected before the dropdown menu closes

Would be really useful if, when the option 'unsure' was checked, if it would display this decision similarly to the 'include' and 'exclude' then it would be clear to other reviewers that there is uncertainty over this reference rather than there being no decision shown which leads to uncertainty over whether this has been examined or not.

Re-order exclusion reasons. This could be either manual, or dynamically by frequency or recency

Support abstraction

meta analysis tool

It would be quicker to scan through abstracts if you highlight key parts of the abstract like "aims" or "results"...etc.

Better export to csv for easier analysis. As it is right now, filtering is difficult because labels get lumped in with exclusion decisions, and there's lots of cleanup in excel. Just pipe those to different columns and we'd be golden.

Re-use inclusion/exclusion keywords which were defined for a previous review (import/export inclusion/exclusion keywords).

Explanation: I created an extensive set of inclusion/exclusion keywords for screening prediction studies. I would like to re-use them on a different review, without having to type them in again.

Ability to set number of reviewers per article.

automatically search for full texts

A feature to download a backup file of the running review to local computer, which contain all the decisions made till now and restore it if any thing goes wrong with the main online file. This will give extra piece of mind when reviewing a big list of documents (eg. more than a 1000 articles)

When opening the app, let it automatically jump to the last abstract you've reviewed instead of scrolling down